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-rw-r--r--drivers/clk/Kconfig7
-rw-r--r--drivers/clk/Makefile1
-rw-r--r--drivers/clk/bcm/clk-bcm2835-aux.c11
-rw-r--r--drivers/clk/bcm/clk-bcm2835.c12
-rw-r--r--drivers/clk/clk-axm5516.c2
-rw-r--r--drivers/clk/clk-bd718x7.c123
-rw-r--r--drivers/clk/clk-bulk.c13
-rw-r--r--drivers/clk/clk-composite.c13
-rw-r--r--drivers/clk/clk-conf.c5
-rw-r--r--drivers/clk/clk-devres.c7
-rw-r--r--drivers/clk/clk-divider.c5
-rw-r--r--drivers/clk/clk-fixed-factor.c7
-rw-r--r--drivers/clk/clk-fixed-rate.c5
-rw-r--r--drivers/clk/clk-fractional-divider.c5
-rw-r--r--drivers/clk/clk-gate.c5
-rw-r--r--drivers/clk/clk-gpio.c5
-rw-r--r--drivers/clk/clk-hi655x.c4
-rw-r--r--drivers/clk/clk-max77686.c2
-rw-r--r--drivers/clk/clk-multiplier.c5
-rw-r--r--drivers/clk/clk-mux.c5
-rw-r--r--drivers/clk/clk-palmas.c2
-rw-r--r--drivers/clk/clk-rk808.c15
-rw-r--r--drivers/clk/clk-s2mps11.c2
-rw-r--r--drivers/clk/clk-twl6040.c5
-rw-r--r--drivers/clk/clk.c47
-rw-r--r--drivers/clk/clk.h7
-rw-r--r--drivers/clk/h8300/clk-h8s2678.c2
-rw-r--r--drivers/clk/hisilicon/clk-hi3620.c2
-rw-r--r--drivers/clk/hisilicon/clk-hisi-phase.c2
-rw-r--r--drivers/clk/hisilicon/clk-hix5hd2.c2
-rw-r--r--drivers/clk/hisilicon/clkgate-separated.c2
-rw-r--r--drivers/clk/loongson1/clk.c8
-rw-r--r--drivers/clk/pistachio/clk-pll.c8
-rw-r--r--drivers/clk/pxa/clk-pxa.c4
-rw-r--r--drivers/clk/qcom/apcs-msm8916.c6
-rw-r--r--drivers/clk/renesas/clk-div6.c2
-rw-r--r--drivers/clk/renesas/clk-mstp.c2
-rw-r--r--drivers/clk/renesas/r9a06g032-clocks.c8
-rw-r--r--drivers/clk/renesas/rcar-gen3-cpg.c2
-rw-r--r--drivers/clk/renesas/renesas-cpg-mssr.c2
-rw-r--r--drivers/clk/samsung/clk-s3c2410-dclk.c2
-rw-r--r--drivers/clk/st/clk-flexgen.c2
-rw-r--r--drivers/clk/st/clkgen-fsyn.c4
-rw-r--r--drivers/clk/st/clkgen-pll.c2
-rw-r--r--drivers/clk/versatile/clk-sp810.c2
-rw-r--r--include/dt-bindings/clock/bcm2835-aux.h10
-rw-r--r--include/dt-bindings/clock/bcm2835.h10
-rw-r--r--include/linux/clk-provider.h7
-rw-r--r--include/linux/clk/clk-conf.h5
49 files changed, 232 insertions, 184 deletions
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 81cdb4eaca07..2dc12bf75b1b 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -283,6 +283,13 @@ config COMMON_CLK_STM32H7
---help---
Support for stm32h7 SoC family clocks
+config COMMON_CLK_BD718XX
+ tristate "Clock driver for ROHM BD718x7 PMIC"
+ depends on MFD_ROHM_BD718XX
+ help
+ This driver supports ROHM BD71837 and ROHM BD71847
+ PMICs clock gates.
+
source "drivers/clk/actions/Kconfig"
source "drivers/clk/bcm/Kconfig"
source "drivers/clk/hisilicon/Kconfig"
diff --git a/drivers/clk/Makefile b/drivers/clk/Makefile
index 72be7a38cff1..a47430b387db 100644
--- a/drivers/clk/Makefile
+++ b/drivers/clk/Makefile
@@ -21,6 +21,7 @@ endif
obj-$(CONFIG_MACH_ASM9260) += clk-asm9260.o
obj-$(CONFIG_COMMON_CLK_AXI_CLKGEN) += clk-axi-clkgen.o
obj-$(CONFIG_ARCH_AXXIA) += clk-axm5516.o
+obj-$(CONFIG_COMMON_CLK_BD718XX) += clk-bd718x7.o
obj-$(CONFIG_COMMON_CLK_CDCE706) += clk-cdce706.o
obj-$(CONFIG_COMMON_CLK_CDCE925) += clk-cdce925.o
obj-$(CONFIG_ARCH_CLPS711X) += clk-clps711x.o
diff --git a/drivers/clk/bcm/clk-bcm2835-aux.c b/drivers/clk/bcm/clk-bcm2835-aux.c
index e01d557853a0..2a2c7569336a 100644
--- a/drivers/clk/bcm/clk-bcm2835-aux.c
+++ b/drivers/clk/bcm/clk-bcm2835-aux.c
@@ -1,15 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2015 Broadcom
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
*/
#include <linux/clk.h>
diff --git a/drivers/clk/bcm/clk-bcm2835.c b/drivers/clk/bcm/clk-bcm2835.c
index 6b6d8360af86..9fcae932e082 100644
--- a/drivers/clk/bcm/clk-bcm2835.c
+++ b/drivers/clk/bcm/clk-bcm2835.c
@@ -1,17 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2010,2015 Broadcom
* Copyright (C) 2012 Stephen Warren
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
*/
/**
diff --git a/drivers/clk/clk-axm5516.c b/drivers/clk/clk-axm5516.c
index 5d7ae333257e..98e0c9ba7b61 100644
--- a/drivers/clk/clk-axm5516.c
+++ b/drivers/clk/clk-axm5516.c
@@ -311,7 +311,6 @@ static struct axxia_divclk clk_per_div = {
"clk_sm1_pll"
},
.num_parents = 1,
- .flags = CLK_IS_BASIC,
.ops = &axxia_divclk_ops,
},
.reg = 0x1000c,
@@ -326,7 +325,6 @@ static struct axxia_divclk clk_mmc_div = {
"clk_sm1_pll"
},
.num_parents = 1,
- .flags = CLK_IS_BASIC,
.ops = &axxia_divclk_ops,
},
.reg = 0x1000c,
diff --git a/drivers/clk/clk-bd718x7.c b/drivers/clk/clk-bd718x7.c
new file mode 100644
index 000000000000..60422c72d142
--- /dev/null
+++ b/drivers/clk/clk-bd718x7.c
@@ -0,0 +1,123 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (C) 2018 ROHM Semiconductors
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/mfd/rohm-bd718x7.h>
+#include <linux/clk-provider.h>
+#include <linux/clkdev.h>
+#include <linux/regmap.h>
+
+struct bd718xx_clk {
+ struct clk_hw hw;
+ u8 reg;
+ u8 mask;
+ struct platform_device *pdev;
+ struct bd718xx *mfd;
+};
+
+static int bd71837_clk_set(struct clk_hw *hw, int status)
+{
+ struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
+
+ return regmap_update_bits(c->mfd->regmap, c->reg, c->mask, status);
+}
+
+static void bd71837_clk_disable(struct clk_hw *hw)
+{
+ int rv;
+ struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
+
+ rv = bd71837_clk_set(hw, 0);
+ if (rv)
+ dev_dbg(&c->pdev->dev, "Failed to disable 32K clk (%d)\n", rv);
+}
+
+static int bd71837_clk_enable(struct clk_hw *hw)
+{
+ return bd71837_clk_set(hw, 1);
+}
+
+static int bd71837_clk_is_enabled(struct clk_hw *hw)
+{
+ int enabled;
+ int rval;
+ struct bd718xx_clk *c = container_of(hw, struct bd718xx_clk, hw);
+
+ rval = regmap_read(c->mfd->regmap, c->reg, &enabled);
+
+ if (rval)
+ return rval;
+
+ return enabled & c->mask;
+}
+
+static const struct clk_ops bd71837_clk_ops = {
+ .prepare = &bd71837_clk_enable,
+ .unprepare = &bd71837_clk_disable,
+ .is_prepared = &bd71837_clk_is_enabled,
+};
+
+static int bd71837_clk_probe(struct platform_device *pdev)
+{
+ struct bd718xx_clk *c;
+ int rval = -ENOMEM;
+ const char *parent_clk;
+ struct device *parent = pdev->dev.parent;
+ struct bd718xx *mfd = dev_get_drvdata(parent);
+ struct clk_init_data init = {
+ .name = "bd718xx-32k-out",
+ .ops = &bd71837_clk_ops,
+ };
+
+ c = devm_kzalloc(&pdev->dev, sizeof(*c), GFP_KERNEL);
+ if (!c)
+ return -ENOMEM;
+
+ init.num_parents = 1;
+ parent_clk = of_clk_get_parent_name(parent->of_node, 0);
+
+ init.parent_names = &parent_clk;
+ if (!parent_clk) {
+ dev_err(&pdev->dev, "No parent clk found\n");
+ return -EINVAL;
+ }
+
+ c->reg = BD718XX_REG_OUT32K;
+ c->mask = BD718XX_OUT32K_EN;
+ c->mfd = mfd;
+ c->pdev = pdev;
+ c->hw.init = &init;
+
+ of_property_read_string_index(parent->of_node,
+ "clock-output-names", 0, &init.name);
+
+ rval = devm_clk_hw_register(&pdev->dev, &c->hw);
+ if (rval) {
+ dev_err(&pdev->dev, "failed to register 32K clk");
+ return rval;
+ }
+ rval = devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_simple_get,
+ &c->hw);
+ if (rval)
+ dev_err(&pdev->dev, "adding clk provider failed\n");
+
+ return rval;
+}
+
+static struct platform_driver bd71837_clk = {
+ .driver = {
+ .name = "bd718xx-clk",
+ },
+ .probe = bd71837_clk_probe,
+};
+
+module_platform_driver(bd71837_clk);
+
+MODULE_AUTHOR("Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>");
+MODULE_DESCRIPTION("BD71837 chip clk driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/clk/clk-bulk.c b/drivers/clk/clk-bulk.c
index 6a7118d4250a..06499568cf07 100644
--- a/drivers/clk/clk-bulk.c
+++ b/drivers/clk/clk-bulk.c
@@ -1,19 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright 2017 NXP
*
* Dong Aisheng <aisheng.dong@nxp.com>
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/clk.h>
diff --git a/drivers/clk/clk-composite.c b/drivers/clk/clk-composite.c
index 00269de2f390..46604214bba0 100644
--- a/drivers/clk/clk-composite.c
+++ b/drivers/clk/clk-composite.c
@@ -1,17 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2013 NVIDIA CORPORATION. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/clk.h>
diff --git a/drivers/clk/clk-conf.c b/drivers/clk/clk-conf.c
index 49819b546134..2ef819606c41 100644
--- a/drivers/clk/clk-conf.c
+++ b/drivers/clk/clk-conf.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2014 Samsung Electronics Co., Ltd.
* Sylwester Nawrocki <s.nawrocki@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/clk.h>
diff --git a/drivers/clk/clk-devres.c b/drivers/clk/clk-devres.c
index 12c87457eca1..c9a86156ced8 100644
--- a/drivers/clk/clk-devres.c
+++ b/drivers/clk/clk-devres.c
@@ -1,9 +1,4 @@
-/*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
+// SPDX-License-Identifier: GPL-2.0
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/export.h>
diff --git a/drivers/clk/clk-divider.c b/drivers/clk/clk-divider.c
index b6234a5da12d..e5a17265cfaf 100644
--- a/drivers/clk/clk-divider.c
+++ b/drivers/clk/clk-divider.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
* Copyright (C) 2011 Richard Zhao, Linaro <richard.zhao@linaro.org>
* Copyright (C) 2011-2012 Mike Turquette, Linaro Ltd <mturquette@linaro.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Adjustable divider clock implementation
*/
diff --git a/drivers/clk/clk-fixed-factor.c b/drivers/clk/clk-fixed-factor.c
index ef0ca9414f37..739e19dcacfa 100644
--- a/drivers/clk/clk-fixed-factor.c
+++ b/drivers/clk/clk-fixed-factor.c
@@ -1,11 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Standard functionality for the common clock API.
*/
#include <linux/module.h>
#include <linux/clk-provider.h>
diff --git a/drivers/clk/clk-fixed-rate.c b/drivers/clk/clk-fixed-rate.c
index 6d6475c32ee5..00ef4f5e53fe 100644
--- a/drivers/clk/clk-fixed-rate.c
+++ b/drivers/clk/clk-fixed-rate.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2010-2011 Canonical Ltd <jeremy.kerr@canonical.com>
* Copyright (C) 2011-2012 Mike Turquette, Linaro Ltd <mturquette@linaro.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Fixed rate clock implementation
*/
diff --git a/drivers/clk/clk-fractional-divider.c b/drivers/clk/clk-fractional-divider.c
index fdf625fb10fa..830f1361ff79 100644
--- a/drivers/clk/clk-fractional-divider.c
+++ b/drivers/clk/clk-fractional-divider.c
@@ -1,10 +1,7 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2014 Intel Corporation
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Adjustable fractional divider clock implementation.
* Output rate = (m / n) * parent_rate.
* Uses rational best approximation algorithm.
diff --git a/drivers/clk/clk-gate.c b/drivers/clk/clk-gate.c
index dd82485e09a1..f05823cd9b21 100644
--- a/drivers/clk/clk-gate.c
+++ b/drivers/clk/clk-gate.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2010-2011 Canonical Ltd <jeremy.kerr@canonical.com>
* Copyright (C) 2011-2012 Mike Turquette, Linaro Ltd <mturquette@linaro.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Gated clock implementation
*/
diff --git a/drivers/clk/clk-gpio.c b/drivers/clk/clk-gpio.c
index 6a43ce420492..25eed3e0251f 100644
--- a/drivers/clk/clk-gpio.c
+++ b/drivers/clk/clk-gpio.c
@@ -1,3 +1,4 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2013 - 2014 Texas Instruments Incorporated - http://www.ti.com
*
@@ -5,10 +6,6 @@
* Jyri Sarha <jsarha@ti.com>
* Sergej Sawazki <ce3a@gmx.de>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Gpio controlled clock implementation
*/
diff --git a/drivers/clk/clk-hi655x.c b/drivers/clk/clk-hi655x.c
index 403a0188634a..a0de3315df2e 100644
--- a/drivers/clk/clk-hi655x.c
+++ b/drivers/clk/clk-hi655x.c
@@ -107,8 +107,8 @@ static int hi655x_clk_probe(struct platform_device *pdev)
if (ret)
return ret;
- return of_clk_add_hw_provider(parent->of_node, of_clk_hw_simple_get,
- &hi655x_clk->clk_hw);
+ return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_simple_get,
+ &hi655x_clk->clk_hw);
}
static struct platform_driver hi655x_clk_driver = {
diff --git a/drivers/clk/clk-max77686.c b/drivers/clk/clk-max77686.c
index 02551fe4b87c..22c937644c93 100644
--- a/drivers/clk/clk-max77686.c
+++ b/drivers/clk/clk-max77686.c
@@ -137,7 +137,7 @@ static unsigned long max77686_recalc_rate(struct clk_hw *hw,
return 32768;
}
-static struct clk_ops max77686_clk_ops = {
+static const struct clk_ops max77686_clk_ops = {
.prepare = max77686_clk_prepare,
.unprepare = max77686_clk_unprepare,
.is_prepared = max77686_clk_is_prepared,
diff --git a/drivers/clk/clk-multiplier.c b/drivers/clk/clk-multiplier.c
index dc037c957acd..3c86f859c199 100644
--- a/drivers/clk/clk-multiplier.c
+++ b/drivers/clk/clk-multiplier.c
@@ -1,9 +1,6 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2015 Maxime Ripard <maxime.ripard@free-electrons.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
#include <linux/bitops.h>
diff --git a/drivers/clk/clk-mux.c b/drivers/clk/clk-mux.c
index 1628b93655ed..2ad2df2e8909 100644
--- a/drivers/clk/clk-mux.c
+++ b/drivers/clk/clk-mux.c
@@ -1,12 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2011 Sascha Hauer, Pengutronix <s.hauer@pengutronix.de>
* Copyright (C) 2011 Richard Zhao, Linaro <richard.zhao@linaro.org>
* Copyright (C) 2011-2012 Mike Turquette, Linaro Ltd <mturquette@linaro.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Simple multiplexer clock implementation
*/
diff --git a/drivers/clk/clk-palmas.c b/drivers/clk/clk-palmas.c
index e9612e7068e9..e41a3a9f7528 100644
--- a/drivers/clk/clk-palmas.c
+++ b/drivers/clk/clk-palmas.c
@@ -115,7 +115,7 @@ static int palmas_clks_is_prepared(struct clk_hw *hw)
return !!(val & cinfo->clk_desc->enable_mask);
}
-static struct clk_ops palmas_clks_ops = {
+static const struct clk_ops palmas_clks_ops = {
.prepare = palmas_clks_prepare,
.unprepare = palmas_clks_unprepare,
.is_prepared = palmas_clks_is_prepared,
diff --git a/drivers/clk/clk-rk808.c b/drivers/clk/clk-rk808.c
index 6461f2820a5b..8d90bdf5b946 100644
--- a/drivers/clk/clk-rk808.c
+++ b/drivers/clk/clk-rk808.c
@@ -138,23 +138,12 @@ static int rk808_clkout_probe(struct platform_device *pdev)
if (ret)
return ret;
- return of_clk_add_hw_provider(node, of_clk_rk808_get, rk808_clkout);
-}
-
-static int rk808_clkout_remove(struct platform_device *pdev)
-{
- struct rk808 *rk808 = dev_get_drvdata(pdev->dev.parent);
- struct i2c_client *client = rk808->i2c;
- struct device_node *node = client->dev.of_node;
-
- of_clk_del_provider(node);
-
- return 0;
+ return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_rk808_get,
+ rk808_clkout);
}
static struct platform_driver rk808_clkout_driver = {
.probe = rk808_clkout_probe,
- .remove = rk808_clkout_remove,
.driver = {
.name = "rk808-clkout",
},
diff --git a/drivers/clk/clk-s2mps11.c b/drivers/clk/clk-s2mps11.c
index 5b419b82f7ca..2ce370c804aa 100644
--- a/drivers/clk/clk-s2mps11.c
+++ b/drivers/clk/clk-s2mps11.c
@@ -71,7 +71,7 @@ static unsigned long s2mps11_clk_recalc_rate(struct clk_hw *hw,
return 32768;
}
-static struct clk_ops s2mps11_clk_ops = {
+static const struct clk_ops s2mps11_clk_ops = {
.prepare = s2mps11_clk_prepare,
.unprepare = s2mps11_clk_unprepare,
.is_prepared = s2mps11_clk_is_prepared,
diff --git a/drivers/clk/clk-twl6040.c b/drivers/clk/clk-twl6040.c
index 25dfe050ae9f..ea846f77750b 100644
--- a/drivers/clk/clk-twl6040.c
+++ b/drivers/clk/clk-twl6040.c
@@ -108,9 +108,8 @@ static int twl6040_pdmclk_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, clkdata);
- return of_clk_add_hw_provider(pdev->dev.parent->of_node,
- of_clk_hw_simple_get,
- &clkdata->pdmclk_hw);
+ return devm_of_clk_add_hw_provider(&pdev->dev, of_clk_hw_simple_get,
+ &clkdata->pdmclk_hw);
}
static struct platform_driver twl6040_pdmclk_driver = {
diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c
index af011974d4ec..75d13c0eff12 100644
--- a/drivers/clk/clk.c
+++ b/drivers/clk/clk.c
@@ -1,11 +1,8 @@
+// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (C) 2010-2011 Canonical Ltd <jeremy.kerr@canonical.com>
* Copyright (C) 2011-2012 Linaro Ltd <mturquette@linaro.org>
*
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
* Standard functionality for the common clock API. See Documentation/driver-api/clk.rst
*/
@@ -3893,6 +3890,39 @@ static void devm_of_clk_release_provider(struct device *dev, void *res)
of_clk_del_provider(*(struct device_node **)res);
}
+/*
+ * We allow a child device to use its parent device as the clock provider node
+ * for cases like MFD sub-devices where the child device driver wants to use
+ * devm_*() APIs but not list the device in DT as a sub-node.
+ */
+static struct device_node *get_clk_provider_node(struct device *dev)
+{
+ struct device_node *np, *parent_np;
+
+ np = dev->of_node;
+ parent_np = dev->parent ? dev->parent->of_node : NULL;
+
+ if (!of_find_property(np, "#clock-cells", NULL))
+ if (of_find_property(parent_np, "#clock-cells", NULL))
+ np = parent_np;
+
+ return np;
+}
+
+/**
+ * devm_of_clk_add_hw_provider() - Managed clk provider node registration
+ * @dev: Device acting as the clock provider (used for DT node and lifetime)
+ * @get: callback for decoding clk_hw
+ * @data: context pointer for @get callback
+ *
+ * Registers clock provider for given device's node. If the device has no DT
+ * node or if the device node lacks of clock provider information (#clock-cells)
+ * then the parent device's node is scanned for this information. If parent node
+ * has the #clock-cells then it is used in registration. Provider is
+ * automatically released at device exit.
+ *
+ * Return: 0 on success or an errno on failure.
+ */
int devm_of_clk_add_hw_provider(struct device *dev,
struct clk_hw *(*get)(struct of_phandle_args *clkspec,
void *data),
@@ -3906,7 +3936,7 @@ int devm_of_clk_add_hw_provider(struct device *dev,
if (!ptr)
return -ENOMEM;
- np = dev->of_node;
+ np = get_clk_provider_node(dev);
ret = of_clk_add_hw_provider(np, get, data);
if (!ret) {
*ptr = np;
@@ -3950,12 +3980,17 @@ static int devm_clk_provider_match(struct device *dev, void *res, void *data)
return *np == data;
}
+/**
+ * devm_of_clk_del_provider() - Remove clock provider registered using devm
+ * @dev: Device to whose lifetime the clock provider was bound
+ */
void devm_of_clk_del_provider(struct device *dev)
{
int ret;
+ struct device_node *np = get_clk_provider_node(dev);
ret = devres_release(dev, devm_of_clk_release_provider,
- devm_clk_provider_match, dev->of_node);
+ devm_clk_provider_match, np);
WARN_ON(ret);
}
diff --git a/drivers/clk/clk.h b/drivers/clk/clk.h
index 70c0ba6336c1..b02f5e604e69 100644
--- a/drivers/clk/clk.h
+++ b/drivers/clk/clk.h
@@ -1,12 +1,7 @@
+/* SPDX-License-Identifier: GPL-2.0 */
/*
- * linux/drivers/clk/clk.h
- *
* Copyright (C) 2013 Samsung Electronics Co., Ltd.
* Sylwester Nawrocki <s.nawrocki@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
*/
struct clk_hw;
diff --git a/drivers/clk/h8300/clk-h8s2678.c b/drivers/clk/h8300/clk-h8s2678.c
index b68045d8b921..c7ae653c8a16 100644
--- a/drivers/clk/h8300/clk-h8s2678.c
+++ b/drivers/clk/h8300/clk-h8s2678.c
@@ -117,7 +117,7 @@ static void __init h8s2678_pll_clk_setup(struct device_node *node)
parent_name = of_clk_get_parent_name(node, 0);
init.name = clk_name;
init.ops = &pll_ops;
- init.flags = CLK_IS_BASIC;
+ init.flags = 0;
init.parent_names = &parent_name;
init.num_parents = 1;
pll_clock->hw.init = &init;
diff --git a/drivers/clk/hisilicon/clk-hi3620.c b/drivers/clk/hisilicon/clk-hi3620.c
index 77072c7778b9..2eda9bdf6d03 100644
--- a/drivers/clk/hisilicon/clk-hi3620.c
+++ b/drivers/clk/hisilicon/clk-hi3620.c